Air-brake coupling attachment



V. P. Mc-VOY.

ATR BRAKE couPLlNG ATTACHMENT.

APPLICATION FILED NOV. 20, 1919'.

Paten'd Nov. 16, 1920.

VINCEN P. IVICVOY, 0F MOBILE, ALABAMA,

ASSIGNGR TO UNITED STATES RAILWAY SUPPLY COMPANY, 0F DOVER, DELAARE, A CORPORATION OF DELAWARE.

AIR-BRAKE COUPLING ATTACHMENT.

Specification of Letters Patent.

Patented N ov. 16, i920.

Application filed November 20, 1919. ASerial No. 339,524.

To all Iwlaom it may concern.'

Be it known that I, VINO/nn P. Mci-Tor, a citizen of the United States, residing at .li/iebile, in the county of Mobile and State of iilabama, have invented certain new and useful Improvements in lair-Brake Coupling Attachments, of which the following a specification.

This invention relates to certain new and useful devices applicable to the hose couplings of the brake systems of railway trains.

The present invention has for its objects among others to provide simple, yet efficient and reliable means, readily applied to the couplings now in use, for the purpose of quickly and easily exhausting the air from the couplings when it is desired to uncouple the same. I

As is well-known, Awhen it is desired to unconple the couplings between two lines oi hose connecting` two adjacent cars, the valves upon each side of the couplings are generally closed, leaving the couplings full of compressed air similar tothat in the train-line and this renders it difhcult to uncouple, making it necessary to employ both hands, and at best is not an easy matter. My present invention embodies means operable by one hand, without the necessity of going under the car, by which the air is quickly er` hausted so that the coupling members can be asily and quickly separated,

The device constituting the present improvement is composed of few parts, those readily assembled, easily operated, and not l liable to become injured or get out of order. Being easily operable byone hand without going under the car, the operator has his other hand free to support himself upon the hand-rail or other portion of the car so that even should the train start while he is attempting to uncouple he is not in danger of being injured in any way.

Other objects and advantages of the invention will hereinafter appear and the novel features thereof will be particularly pointed out in the appended claims.

vhe invention, in its preferred form, is clearly illustrated in the accompanying drawing, which, with the numerals of reference marked thereon, form a part of this specication, and in which- Figure l is a side elevation of two coupling members in coupled position, provided i tue outer end of the cap.

with my improvement, the upper portion b'eing broken away with parts shown in section.

`gig. 2 is a top plan.

Like numerals of reference indicate likeY parts throughout the different views.

Referring to the drawings,

l and 2 designate the coupling' members of well-known or any approved form of construction and 3 and i the adjacent portions of the hose-attaching portion.

ln applying my present improvement, I form in the coupling member a screwt-hreaded opening 5 into which is threaded the screw-threaded portion 6 of the plug or bushing 7. This bushing is counterbored to form a chamber 8 and fitted to slide within this chamber is a thimble or cap 9 having near its outer end the radial openings l0. Secured to and movable with a stem ll slidable loosely through an opcning i2 in the portion 6 and provided at its inner end with a nut 13, there being shown as interposed between the nut and the adjacent face of the member 6 a washer 14E of rubber analogous material against which bears themetal washer l5l for an obvious purpose.

e a spring suri ounding the stem ll and sed within the chamber 8, finding-a ne' at one end against the bottom of e chamber and at the other end against The stem may be of sufhcientiy smaller diameter or cross section than the bore or opening through which it works to provide a passageway 17 for the air, as seen in Fig. l. The stem may be polygonal or of other form to provide such passageway.

18 is the lever or member by which the stem is moved inward. It is preferably, though not necessarily, of the channel iron form seen in Fig. 2, being provided at one end with a pair of lips 19. 2O is a plate resting against the outer face of the coupling member and having an opening through which the threaded portion 6 of the plug or bushing passes, the flange 2l of the plug or bushing resting upon the body portion of the member 20. Rising from diametrically opposite sides of the member 2O are the ears or the like 22 having slots 23 through which the operating' lever or member 18 passes.

In practice, this member is inserted endu wise through these slots 23 and the ears 19 engage with the upper1` portion of one of the this cap 9 is' slots, as seen in Fig. l, when these eers or lugs serve prevent accidentel displeeement of the lever. l'ormelly, the spring it) tends to fore-e the een E) outuf'err and press the Washer iet iirmly against the ne Well ot' the member 6 so es to tightly @lese the opening or passageway l?. W hen it is clesired to uneouple, ell that it is necessary to elo is for the treinmen to press upon the lever i8 in the direction of the erroiv Whoi will compress the spring, the stem eviti' its cap being` moved mwa, vi, with the res-u that the Washer let is also movetl inv thus permitth g; the reeely escupe of the through the pessege l? nifl out through the openings l0 in the oep to the phere, end

the coupling members.

removed from the member 18u the spriA llvfhen pressure 1s tu ns the ports to normal position reed] f 'further use.

lt will be noted theN the con ction is such that should, pere rence, come broken, the devise Wil. tive., es the pressure from Witl An th conH plinI would he s cient t ,1 the We 7 le so es to elo e the opening l? and prevent leakage through seicl openno.

What is Claimed es new iszl. An ettoel'iment tor e trein-pipe Coupiinp` emhoflvirw o bushingn insertihle in en openin in the Coupling; memlrer and means removable with seid bushing elo ehle by the pressure Within the coupling, and ineens 'for actuating the saune to exhaust the oir from seid Coupling accessible 'from the side ot the coupling' member. i

2. A troinepipe coupling` exhaust meel-r" nism comprising e member etteeheble to insertihle in on opening' in the eouplin movable elosurefor en opening in nifl mei loer7 enel lever means for moving seid Closure to permit of the escape of air ec- Cessihle from the side of theeoupling member.

3. A treinpipe coupling; ettaegiment sont the elloWirte` of ready unoougling oit,

Leseeoe lrisine member insertble in en openino' in coupling,

en operturecl oep movable in e stem movable with the Cep meses fior Closing e passage member, and Ineens tor exertn said oep to permit of the o n the coupling.

the

Px. train-pipe seid plug operating;

coup ing, e stem move Die through Si 7 no Carr;` ing closure, mea-.ns eoivitn 11e pressure nuthin the cou- -f .gz .1. .Li i M pimp; iol normali i seatine ene Closure, zin-l lever ineens contesting i movn the elesur rwov 'n o 1 l L 1 o. it oeviee ltor the purpose {leser-m prismg e plug having K e stem movable tiirough smal U' e, elosure tor said, passage, an cap movable with the etenLA applying pressure o to the tendenov ^it the oir iv rtl.

6. A device for the purpose oeserihed, comprising; e plug; having en opening` 'there through, e oep movable in the plug, e elo sure for seid opening7 movable with the Cep7 e spring in seid Cep ten/ling to move the cop outward7 and means for moving the oep end losure simultaneously in opposition to seid opposition Q the Coupling to force sind ce. u outive spring.

7. A device tor the purpose fleserihefl, ceinesamherecl flanged plug iviti neiinp; therethiongh, a stem movable pte/neng7 o closure for the openi ,y the stem, en epertured oop m L chamber and with stm,

in@l toV torce the ee outward eens reteineal hy the 'flange of the plug 'for ugorting pressure device, and o pressure ee suppmctetlL therehjf and engegeahle with seid cap to move the some against the action of the spring.

In testimony7 whereof l eih; my signature` VNCEN P. MCVOY. 

